Device for arresting cinders, flyash, etc.



Aug. 14, 1934. J. F. BUTTS 1,970,488

DEVICE FOR ARRESTING CINDERS, FLY-ASH, ETC

Filed June 16, 1933 Patented Aug. 14, 1934 .2 i .5

DEY1CE I on Alums -Joseph FsButtawasmngt Mahabharata.16,1933, serial No. starss' Thsi invention is a device'for arresting fly-ash', cinders,-soot, dust and similar heavierthan: air-x particles normally discharged into the surrounding atmosphere from like.

In many municipalities considerable attention is devoted to abating the smoke nuisance and its chimneys, stacks and the.

ramifications, in order that the fire hazard and.

smokeand cinder damageto surroundingneigh- 10 j-jborhoods may be reduced,and to also atthe same timev prevent damage to the health of the com-x.

lyaand downwardly shaped wall, and suspended- One of the objects of the invention is toabate such nuisances by providing adevice of simple munity, incident-to contamination of. the air. 1

lj.':jconst ruction,jgcapable of being-appliedto any stack or chimney, and so constructedian'd arrangedthat itwill preventsubstantially all :dis--. tribution into the surrounding atmosphere, of. cinders, soot, fly-ash, dust and other, heavier.-. zo'than air particles, which are discharged from astack during the normal functioning thereof, and

precipitated into the surrounding territory. A. further object is to providea device of the, chary acter described constructed and arrangedto col- 25 ;lec t the objectionable materials and to direct them to a, place for convenient storage and eventual removal. The invention will be hereinafter fully-set forth and particularly pointed out in the claims, 397; In theaccompanying drawing:

with the invention. Figure 2 is a detail view illustrating the arrangement for adjustably- 5-supporting the arrestercones, I n Referring to the drawing, designates a chamber of anydesirable cross sectional shape. As shown, it consists of a cylindrical sheet metal, casing having a downwardly and inwardlyslopmg bottom .wall 11 ofaapproximately inverted frusto-conical form, said bottom wallbeing provided with a central opening 120f, proper proport' ns t fit around and ,closel en a e the dis v g g l anchor. bolts 26passed through the chamberwall.

It is to be understood that it is preferred to construct each casing 10 and its associated ele charge end of a chimney, stack or the like, indi cated at 13 It will be observed also.that the discharge end of the stacklS extends into ;;the chamber 10 a substantial distance. fl'hetop o f, the chamber 10 is provided with an upwardly .that,;the. disclosure in theqdrawingis illustrative;

1or relative proportionsand spacing of, the pa1'ts.-.=

and inwardlysloping wall 15 i frusto conicall ojrform, terminating in a central outlet opening,-16,

surrounded by. a collar:16, as shown, Theiout-u let opening isof approximatelythe same diam-t;

eteras the stack, 13, the chamber 10 being-off;

...tion is not limited in this respect because it may. .be made of. any desired polygonal cross section, I

considerably greater diameter than sai'd'ystack.

55 Located within thechamberiflabove':thedisga.

ed Cinders, etc. (not shown) sw s; (clfieeprosfr charge opening of the stack 13 is a hollow baffle member 17, having a downwardly and'outwa'rdly inclined walll said bafilemember 17 is pro f vided with a central ope'ni'nglS at its top',jand is 1 suspended within-the chamber 10 by me'ans 0f strapslQ, attached: to theverticalwall of the casinglOJLTheba'se of said baflle niember is of r such: diameteraas" tolieadjacent to the' said walls, butout 10f contact there'with, as shown.-

:Located above' the baflle member 17- is a closed hollow baffle member 20 shown with'an outwardinlposition by me'ansot straps Zlattached to the-- wall near theitopofxthe chamber 10'. It will be' noted thatfthe'baflle member 20 is open at the ranging. the outer surface of the bafile member 17 at .lanapproximate' angle of 22 degrees, and l the angle of.-the. outer surface of the bafilemem ber 20st an angle of degrees; It is to be un--' derstood, however, that these 'figure's are merely given'by wayzof ex'amplea'nd without intending" to. limitthe invention, because the inclinations of the, respective top surfaces may bevaried without departing'from the'spir'it of the invention. #It- .will be observedthat the inlet and outlet openings,.and.-the baflie members are arranged in axial Figure lisavertical longitudinal sectional view illustrating a device constructed in accordance I wall-11*, are a plurality'of hopper-like attachments 22, discharging'into collection pipes. 23, which lead-to a'suitabl'e location for storage of collect- Inorder-to-arrange forfadjustability of the;

bane members, the suspending straps 19 andfll respectively are providedgwithangular' ends 2 1' constructedfajndf arranged to engage the walls "of the casing 'IOIZSaid bent portions24 emerge videdwith"'s1ots 25 for slidable' engagement. with' ments of such dimensions as will meet the re It :is als.o ,to'be -understooidthat although the cas ing is. shown-as of; cylindrical shape, the invenbaflle of approximately conical form also suspended withinthe casing above the first mentioned baffle, the base of said conical baflle being spaced a substantial distance above the top of the first bafiie, and of less diameter than the base of said first baffle, said conical baflie being also of greater height than the other baffle, the angle of inclination of the wall of the conical baille being greater than the angle of inclination of the Wall of the other baflie, said casing having an outlet opening above the conical bafile, said openings and said baflies being in axial alignment, and chutes leading from the discharge openings in said bottom wall, the clearance between the frust'o-conical baffie and the casing being so positioned and proportioned with respect to the opening in said baffle, that said clearance is practically free of the suction influence of the gaseous currents passing through said opening, so that solid particles rebounding from the conical bafile Will drop through said clearance by gravity, the proportions of said clearance being such as to practically prevent upwardly flowing smoke and gases from passing therethrough.

3. A device for arresting cinders, fly-ash, etc. comprising a cylindrical casing having a centrally disposed opening in its bottom wall of a size to closely receive the discharge end of a stack, a shell-like baffle of frusto-comcal form located Within said casing and having an opening in its top wall of smaller diameter than the stack, the

lower edge of said baflle being spaced from said stack and having its periphery extended close to but not touching the adjacent wall of said casing, in such manner as to provide a slight clearance between the casing and said lower edge, a second shell-like closed bafile of approximately conical form also suspended within the casing above the first mentioned baflle, the base of said conical baflle being spaced a substantial distance above the top of the first baffle, and of less diameter than the base of said first baflle, said conical bafile being also of greater height than the other baille, the angle of inclination of the Wall of the conical baifle being greater than the angle of inclination of the wall of the other baflle, said casing having an outlet opening above the conical baffle, said openings and said bafiles being in axial alignment, arms secured to the bafiles, and means whereby said arms are adjustably secured to the 

